New insights into decomposition characteristics of nanoscale methane hydrate below the ice point

doi:10.1039/c8ra08955h

GIEC OpenIR

	New insights into decomposition characteristics of nanoscale methane hydrate below the ice point
	Wan, Lihua; Liang, Deqing; Guan, Jinan
	2018
发表期刊	RSC ADVANCES
ISSN	2046-2069
卷号	8 期号:72 页码:41397-41403
通讯作者	Liang, Deqing(liangdq@ms.giec.ac.cn)
摘要	In this paper, molecular dynamics simulation was used to study the decomposition process of nanoscale methane hydrate at 1 atm and 227 K. The results predict that methane hydrate decomposes into supercooled water (SCW) and methane gas and the resulting SCW turns into very high density amorphous ice (VHDA). The density of the VHDA is as high as 1.2-1.4 g cm(-3). The X-ray diffraction phase analysis showed that VHDA has a broad peak at 2 of around 30 degrees. The VHDA encapsulates the methane hydrate crystal so that the crystal can survive for a long time. The dissolved gas from the hydrate melt cannot escape out of the VHDA in a short time. The simulation results reveal new molecular insights into the decomposition behaviour of nanoscale methane hydrate below the ice point.
DOI	10.1039/c8ra08955h
关键词[WOS]	NATURAL-GAS ; ANOMALOUS PRESERVATION ; MOLECULAR-DYNAMICS ; SUPERCOOLED WATER ; CRYSTAL-STRUCTURE ; CH4 HYDRATE ; DISSOCIATION ; CARBON ; EVOLUTION ; LIQUID
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51576197] ; National Natural Science Foundation of China[51106163] ; National Natural Science Foundation of China[51676197] ; National Key Research and Development Plan of China[2016YFC0304002]
WOS研究方向	Chemistry
项目资助者	National Natural Science Foundation of China ; National Key Research and Development Plan of China
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000453914300032
出版者	ROYAL SOC CHEMISTRY
引用统计
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/24357
专题	中国科学院广州能源研究所
通讯作者	Liang, Deqing
作者单位	Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Wan, Lihua,Liang, Deqing,Guan, Jinan. New insights into decomposition characteristics of nanoscale methane hydrate below the ice point[J]. RSC ADVANCES,2018,8(72):41397-41403.
APA	Wan, Lihua,Liang, Deqing,&Guan, Jinan.(2018).New insights into decomposition characteristics of nanoscale methane hydrate below the ice point.RSC ADVANCES,8(72),41397-41403.
MLA	Wan, Lihua,et al."New insights into decomposition characteristics of nanoscale methane hydrate below the ice point".RSC ADVANCES 8.72(2018):41397-41403.